Effect of no‐tillage vs. conventional tillage on soil organic matter and nitrogen contents

1987 ◽  
Vol 18 (10) ◽  
pp. 1061-1076 ◽  
Author(s):  
Raymond N. Gallaher ◽  
Maglene B. Ferrer
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Conventional Tillage ◽  
No Tillage ◽  
Nitrogen Contents

Soil physical attributes and organic matter accumulation under no-tillage systems in the Cerrado

Soil Research ◽  
2019 ◽  
Vol 57 (7) ◽  
pp. 712
Author(s):  
J. L. R. Torres ◽  
J. C. Mazetto Júnior ◽  
J. Silva Júnior ◽  
D. M. S. Vieira ◽  
Z. M. Souza ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Crop Production ◽  
Conventional Tillage ◽  
Native Forest ◽  
Organic Carbon Content ◽  
No Tillage ◽  
Deep Soil ◽  
Tillage Systems ◽  
Physical Attributes

Soil management has a major effect on soil physical characteristics, and consequently on soil organic matter (SOM) content, which are important for the success of crop production. The aim of this study was to evaluate the soil physical attributes and the accumulation of SOM in no-tillage systems (NTS) with different periods of implantation in a conventional tillage area and to compare them with native forest (NF) in the Cerrado biome. The experiment was planned in a 3 × 4 factorial scheme, consisting of three soil treatments (NTS for 17 years (NTS17), NTS for 5 years (NTS5) and NF) and four soil depths (0–0.1, 0.1–0.2, 0.2–0.3 and 0.3–0.4 m), with a completely randomised design and four replicates. At deep soil layers (0.2–0.4 m) the NTS17 area had a greater soil density than the NTS5 and NF areas, and greater SOM compared with the NTS5 area. Soil macroporosity in the NTS5 area was below 10% at all soil depths evaluated. The NF area had the greatest total organic carbon content (1.39 dag kg–1), stock of carbon (16.63 Mg ha--1), amount of soil organic matter (28.66 Mg ha--1) and equivalent carbon credits (60.96 Mg ha–1). Carbon stocks were similar in the NTS areas in all soil depths evaluated. The results indicate that conventional tillage areas can be successfully recovered under the Cerrado edaphoclimatic conditions with the implantation of an NTS.

Chemical composition of cover crops and soil organic matter pools in no‐tillage systems in the Cerrado

2021 ◽  
Author(s):  
Arminda Moreira de Carvalho ◽  
Luana Ramos Passos Ribeiro ◽  
Robélio Leandro Marchão ◽  
Alexsandra Duarte de Oliveira ◽  
Karina Pulrolnik ◽  
...  
Keyword(s):  
Organic Matter ◽  
Chemical Composition ◽  
Soil Organic Matter ◽  
Cover Crops ◽  
No Tillage ◽  
Tillage Systems

scholarly journals Soil Aggregates and Associated Organic Matter under Conventional Tillage, No-Tillage, and Forest Succession after Three Decades

PLoS ONE ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. e84988 ◽  
Author(s):  
Scott Devine ◽  
Daniel Markewitz ◽  
Paul Hendrix ◽  
David Coleman
Keyword(s):  
Organic Matter ◽  
Forest Succession ◽  
Soil Aggregates ◽  
Conventional Tillage ◽  
No Tillage

scholarly journals Effect of no tillage on the physico-chemical properties of soils of the El Koudia region, Rabat (Morocco)

2020 ◽  
Vol 150 ◽  
pp. 03010
Author(s):  
Hassnae Maher ◽  
Rachid Moussadek ◽  
Abdelmjid Zouahri ◽  
Ahmed Douaik ◽  
Houria Dakak ◽  
...  
Keyword(s):  
Organic Matter ◽  
Structural Stability ◽  
Plant Cover ◽  
Chemical Properties ◽  
Aggregate Stability ◽  
Agricultural Practices ◽  
Conventional Tillage ◽  
No Tillage ◽  
Physico Chemical ◽  
Chemical Properties Of Soils

In Morocco, agriculture is an important sector of the economy, accounting for 15 to 20% of Gross Domestic Product. However, it has faced several challenges: intensive tillage of land that has accelerated water erosion, seriously threatening water and soil potential, low plant cover density and misuse of traditional agricultural practices, causing a decrease in organic matter levels and destroying aggregate stability. Climate change is making water and soil management in agriculture more and more complicated. The major challenge for Moroccan agriculture is to increase agricultural production while preserving natural resources. The objective of our study is to evaluate the effect of no tillage (NT) on the physico- chemical properties of soil in the El Koudia experimental station, Rabat, Morocco. The crop is durum wheat, Arrehane variety. Soil samples are pre-dried, ground and screened to 0.2mm for organic matter (OM) analysis and 2mm for the remainder of the analyses. Plugs, canned, are then sintered, screened and dried for structural stability tests. The results show that no tillage (NT) favours the accumulation of surface OM, particularly at the 0-5cm horizon unlike conventional tillage (CT). The NT promotes structural stability, with a mean weight diameter (MWD) = 0.94mm for the NT compared to 0.83mm for the CT. These results show that soils ploughed in CT are more exposed to erosion degradation than soils not ploughed (NT). In addition, NT preserves soil moisture and promotes additional water retention of 5 to 10%.

Traffic and tillage effects on wheat production on the Loess Plateau of China: 1. Crop yield and SOM

Soil Research ◽  
2008 ◽  
Vol 46 (8) ◽  
pp. 645 ◽  
Author(s):  
Hao Chen ◽  
Yuhua Bai ◽  
Qingjie Wang ◽  
Fu Chen ◽  
Hongwen Li ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Field Experiment ◽  
Loess Plateau ◽  
Crop Yield ◽  
Soil Profile ◽  
Conventional Tillage ◽  
Zero Tillage ◽  
The Loess Plateau ◽  
Controlled Traffic

Challenges for dryland farming on the Loess Plateau of China are continuous nutrient loss, low soil organic matter and crop yield, and soil degradation. Controlled traffic, combined with zero or minimum tillage and residue cover, has been proposed to improve soil structure and crop yield. From 1998 to 2006, we conducted a field experiment comparing soil organic matter and wheat productivity between controlled traffic and conventional tillage farming systems. The field experiment was conducted using 2 controlled traffic treatments (zero tillage with residue cover and no compaction, shallow tillage with residue cover and no compaction) and a conventional tillage treatment. Results showed that controlled traffic treatments significantly increased soil organic matter and microbial biomass in the 0–0.30 m soil profile. Controlled traffic with zero tillage significantly increased total N in the 0–0.05 m soil profile. The mean yield over 8 years of controlled traffic treatments was >10% greater than that of conventional tillage. Controlled traffic farming appears to be a solution to the cropping problems faced on the Loess Plateau of China.

Contributions of carbonates to soil CO2 emissions

2012 ◽  
Vol 92 (4) ◽  
pp. 599-607 ◽  
Author(s):  
R. Ramnarine ◽  
C. Wagner-Riddle ◽  
K. E. Dunfield ◽  
R. P. Voroney
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Inorganic Carbon ◽  
Calcareous Soils ◽  
Decomposition Analysis ◽  
Isotope Ratio Mass Spectrometry ◽  
Conventional Tillage ◽  
Isotopic Signature ◽  
Soil Samples ◽  
Soil Carbonates

Ramnarine, R., Wagner-Riddle, C., Dunfield, K. E. and Voroney, R. P. 2012. Contributions of carbonates to soil CO 2 emissions. Can. J. Soil Sci. 92: 599–607. Carbon dioxide (CO2) is released in soil as a by-product of microbial and root respiration, but soil carbonates may also be a source of CO2 emissions in calcareous soils. Global estimates of inorganic carbon range from 700 to 900 Pg as carbonates stored in soils, representing a significant potential source of CO2 to the atmosphere. While previous studies have focused on the total CO2 efflux from the soil, our goal was to identify the various sources and their contribution to total CO2 emissions, by measuring the isotopic signature of the CO2 emitted from the soil. Calcareous Luvisolic silt loam soil samples were obtained from conventional tillage (CT) and no-tillage (NT) plots in southern Ontario, Canada. Soil samples (root- and residue-free) were laboratory-incubated for 14 d and the isotopic signature of the CO2 (δ13CCO2) released was analyzed using isotope ratio mass spectrometry. Isotopic measurement was essential in quantifying the abiotic CO2 production from carbonates, due to the unique δ13C signature of carbonates and soil organic matter. A two-end member mixing model was used to estimate the proportion of CO2 evolved from soil carbonates and soil organic matter decomposition. Analysis of emitted CO2 collected after the 14-d incubation indicate that the proportion of CO2 originating from soil inorganic carbon was 62 to 74% for CT soil samples, and 64 to 80% for NT soil samples. Further work is recommended in the quantification of CO2 emissions from calcareous soils, and to determine the transferability of laboratory results to field studies.

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